President Trump signed these sanctions into law. This was a huge and stupid mistake. He should have vetoed them, even as a veto would likely be overturned. With his signing of the law Trump gave up the ability to stay on somewhat neutral grounds towards Russia. This for no gain to him at all.

Sanctions by Congress are quasi eternal. The 1974 Jackson-Vanik amendment restricted trade with the then "Communist block". It was supposed to press for Jewish emigration from the Soviet Union to Israel. But even after the Soviet Union broke down in the early 1990s, after the "communist block" had disappeared and long after any limits on emigrations had been lifted, the law and its economic sanctions stayed in place. It was only lifted in 2012 and only to be immediately replaced by the ludicrous Magnitsky act which immediately established a new set of sanctions against the Russian Federation and its interests.

The new additional sanctions, like the Jackson-Vanik amendment and the Magnitsky act, were shaped by domestic U.S. policy issues. There is nothing Russia could have done to avoid them and there is nothing it can do to have them lifted.